Pumping apparatus



Oct. 21, 1952 w. OKELLEY Pun/:PING APPARATUS Filed Nov. 3o, -1949 Inventor Loren Wg O'Ke//ey B y @w Patented oct. A.21", 1,1952

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invention relates tone Y provementsrand' structural 'refinements iiL'pump'- ingl pparatus, more particularly,1y pumping` units su'cl a's commonly empl'oye'clin garden' or field sprinkling systems; and thepri-neipal object of lthe invention is to substantially minimize,.if.not

altogethenprevent, any possibilityyof thegpnrnps becoming obstructed by sand, gravel,v etc., thus rendering the entire sprinkler system ineffective.

In particular, the invention concerns itself with pumping units employing a main pump for drawing water out of a well and a secondary or booster pump for increasing the pressure of water drawn by the main pump, the invention being directed to the provision of filtering means for preventing obstruction of the boosterpump which, unlike the main pump, is more susceptible to becomingclogged by foreign matter as above.v

stated.

Some of the advantages of the invention reside in its simplicity of construction, in its efficient and trouble-free operation, and in its adaptability to economical manufacture.

With the above more important objects and features in view, and such other objects and features as may become apparent as this specification proceeds, the invention consists essentially of the arrangement and construction of parts as illustrated in the accompanying drawings, in

which:

Figure 1 is a side elevational view of the invention, the same being partially broken away so as to reveal its construction;

Figure 2 is a cross sectional view, taken substantially in the plane of the line 2--2 in Figure 1, and, n

Figure 3 is a cross sectional view, taken substantially in the plane ofthe line 3-3 in Figure 1.

Like characters of reference are employed to designate like parts in the specification and throughout the several views. f

Referring now to the accompanying drawings in detail, the invention is embodied in a pumping apparatus designated generally by the reference numeral I9, the same being mounted upon a suitable base I2 and consisting, in accordance with conventional practice, of a main pump I4 communicating through the medium of a pipe IB with a well, a suitabler foot valve I8 being provided in the pipe I6 between the well and the pump I4, as is customary.

The main pump I4 includes a housing 20 and a rotatable impeller 22 mounted directly upon the armature shaft 24 of an electric motor 26 which, in turn, is supported by the base I2, as shown.

-f-'Ihewater drawn by the-pump IN-'isid'eli-ver'edi througha duct ZBLan-'a conventionalSi-iand pump'Y assembly-:3b mayJ y 'e providedionifthis ductf-forf t'l-iepurpose -of'A primingWthe/pum Af horizontally f elongatedv housing* 32"* r'nountedl oni the! base i iZ-lfanda# transverseklt screen 3i4 dispesediin' an-` inclined position mi this1 housing; ma?,T1 'be lachieved L by -'proving-ithedfnner walls of the-'housing with' suitable@ beads or cleats 36.

The screen 34 has what for purposes of orientationmay be described as an upper surface 38 and a lower surface 40, and the screen separates the housing 32 into a sediment chamber 42 and a transfer chamber 44, which chambers are disposed at the respective upper and lower sides or surfaces of the screen, as will be clearly apparent from Figure 1.

The transfer chamber 44 of the housing 32 is extended so as to afford what may be called a bay 46 accommodating a rotatable impeller 48 of a booster pump, the impeller 48 being secured to a shaft 50 which extends outwardly from the housing 32 into a gear case 52 and is driven at a relatively higher speed from the armature 24 of the motor 26 through the medium of step-up gearing 54 so that water delivered by the main pump I4 into the housing-32 (as will be hereinafter described) may be boosted in pressure by the impeller 48. As will be observed, the aforementioned gear case 52 is also mounted on the base I2, and the outlet duct or pipe of the booster pump is indicated at 56 as communicating with the extension or bay 46 of the housing chamber 44.

The aforementioned duct 28 from the main pump I4 communicates with the chamber 42 at a point adjacent the upper edge of the screen 34, so that water delivered by the pump I4 will be discharged onto the screen and will promptly pass through it, while sand, gravel, etc., in the water will remain in the sediment chamber 42. thus protecting the booster impeller 48 against obstruction or damage. v

The sediment in the chamber 42 may be occasionally drained through the medium of an outlet clogging or obstruction without the necessity of dismantling the housing 32.

It is believed that the advantages and use of the invention will be clearly apparent from the foregoing disclosure and accordingly, further description thereof at this point is deemed unnecessary.

While in the foregoing there has been shown and described the preferred embodiment of this invention, it is to be understood that minor changes'in the details of construction, combination and arrangement ofv parts may be resorted to without departing from the spirit and scopeV of the invention as claimed.

Having described the invention, what is claimed as new is:

In a pumping apparatus, the combination of a housing, a transverse lter screen provided in said housing and separating the same into a sediment chamber and a transfer chamber, a primary pump including an outlet duct connected to said sediment chamber, a discharge duct extending from said transfer chamber, a secondary pump provided in the transfer chamber adjacent said discharge duct, and common means for actuating said primary and secondary pumps, said common means including a prime mover having a rotatable drive shaft connected at one end to said primary pump, the other end 4 of said shaft having a first gear secured thereto for rotation therewith, an offset second shaft having a second gear and said secondary pump secured thereto for rotation therewith, said first and second gears having a preselected gear ratio and being interengaged for driving said secondary pump at a speed different from that of said primary pump. LOREN W. O"KELLEY.

REFERENCES CITED The following references are of record in the `ille of this patent:

UNITED STATES PATENTS Number e Name Date 142,438 Chapman Sept. 2, 1873 966,423 Blauvelt Aug. 9, 1910 1,231,477 Bibb June 26, 1917 1,411,145 Whtted Mar. 28, 1922 1,644,129 Hollander Oct. 4, 1927 1,861,839 Burks JuneV 7, 1932 2,414,158 Mock Jan. 14, 1947 2,494,086 Curtis Jan. 10, 1950 FOREIGN PATENTS Number Country Date France Apr. 20 1942 

